linux-kernel - [PATCH net-next 3/7] net/mlx5: Improve QoS error messages with actual depth values

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Message-ID: <1758531671-819655-4-git-send-email-tariqt@nvidia.com>
Date: Mon, 22 Sep 2025 12:01:07 +0300
From: Tariq Toukan <tariqt@...dia.com>
To: Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>, Andrew Lunn <andrew+netdev@...n.ch>, "David
 S. Miller" <davem@...emloft.net>
CC: Saeed Mahameed <saeedm@...dia.com>, Leon Romanovsky <leon@...nel.org>,
	Tariq Toukan <tariqt@...dia.com>, Mark Bloch <mbloch@...dia.com>,
	<netdev@...r.kernel.org>, <linux-rdma@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, Gal Pressman <gal@...dia.com>, Moshe Shemesh
	<moshe@...dia.com>, Carolina Jubran <cjubran@...dia.com>
Subject: [PATCH net-next 3/7] net/mlx5: Improve QoS error messages with actual depth values

From: Carolina Jubran <cjubran@...dia.com>

Enhance error messages in MLX5 QoS scheduling depth validation by
including the actual values that caused the validation to fail.

Suggested-by: Paolo Abeni <pabeni@...hat.com>
Signed-off-by: Carolina Jubran <cjubran@...dia.com>
Reviewed-by: Cosmin Ratiu <cratiu@...dia.com>
Signed-off-by: Tariq Toukan <tariqt@...dia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c
index 5f2d6c35f1ad..8574eb96f606 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c
@@ -971,8 +971,9 @@ esw_qos_vport_tc_enable(struct mlx5_vport *vport, enum sched_node_type type,
 		max_level = 1 << MLX5_CAP_QOS(vport_node->esw->dev,
 					      log_esw_max_sched_depth);
 		if (new_level > max_level) {
-			NL_SET_ERR_MSG_MOD(extack,
-					   "TC arbitration on leafs is not supported beyond max scheduling depth");
+			NL_SET_ERR_MSG_FMT_MOD(extack,
+					       "TC arbitration on leafs is not supported beyond max scheduling depth %d",
+					       max_level);
 			return -EOPNOTSUPP;
 		}
 	}
@@ -1444,8 +1445,9 @@ static int esw_qos_node_enable_tc_arbitration(struct mlx5_esw_sched_node *node,
 	new_level = node->level + 1;
 	max_level = 1 << MLX5_CAP_QOS(node->esw->dev, log_esw_max_sched_depth);
 	if (new_level > max_level) {
-		NL_SET_ERR_MSG_MOD(extack,
-				   "TC arbitration on nodes is not supported beyond max scheduling depth");
+		NL_SET_ERR_MSG_FMT_MOD(extack,
+				       "TC arbitration on nodes is not supported beyond max scheduling depth %d",
+				       max_level);
 		return -EOPNOTSUPP;
 	}
 
@@ -1997,8 +1999,9 @@ mlx5_esw_qos_node_validate_set_parent(struct mlx5_esw_sched_node *node,
 
 	max_level = 1 << MLX5_CAP_QOS(node->esw->dev, log_esw_max_sched_depth);
 	if (new_level > max_level) {
-		NL_SET_ERR_MSG_MOD(extack,
-				   "Node hierarchy depth exceeds the maximum supported level");
+		NL_SET_ERR_MSG_FMT_MOD(extack,
+				       "Node hierarchy depth %d exceeds the maximum supported level %d",
+				       new_level, max_level);
 		return -EOPNOTSUPP;
 	}
 
-- 
2.31.1